کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9823244 1520035 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Autonomous attitude determination by starry sky image processing
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Autonomous attitude determination by starry sky image processing
چکیده انگلیسی
A method of spacecraft attitude determination by starry sky image processing is presented. It can be considered as a basis of fully autonomous attitude determination system. The system enables to determine the orientation of the spacecraft in near-real time directly onboard. It consists of a digital camera fixed on the body of the spacecraft and an onboard computer with a central processing unit for floating point calculations and an external storage with a star catalog stored. To support the functioning of the system two algorithms have been developed. The first algorithm separates the stars from the background noise and determines their coordinates in the plane of the image. The second algorithm identifies the stars using the star catalog. Based on the results attitude determination is calculated by minimizing the differences between the star coordinates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 56, Issues 1–2, January 2005, Pages 241-249
نویسندگان
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